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scientifique

Interoperating Geographic Information Systems, Second International Workshop, Interop '99, Zurich, Switzerland, March 10-12 1999 / Andrej Vckovski (1999)

Public Titre : Interoperating Geographic Information Systems, Second International Workshop, Interop '99, Zurich, Switzerland, March 10-12 1999 : Proceedings Type de document : Actes de congrès Auteurs : Andrej Vckovski, Éditeur scientifique ; K.E. Brassel, Éditeur scientifique ; Hans-Jörg Schek, Éditeur scientifique Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 1999 Collection : Lecture notes in Computer Science, ISSN 0302-9743 num. 1580 Conférence : Interop 1999, 2nd international workshop, Interoperating Geographic Information Systems 10/03/1999 12/03/1999 Zurich Suisse Format : 15 x 23 cm ISBN/ISSN/EAN : 978-3-540-65725-5 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique [Termes IGN] infrastructure mondiale des données localisées [Termes IGN] infrastructure nationale des données localisées [Termes IGN] interopérabilité [Termes IGN] Open GIS Consortium Note de contenu : Interoperability : Invited Contributions - Mediation to Deal with Heterogeneous Data Sources / Gio Wiederhold - OpenGIS: Tales from a Small Market Town / Adrian Cuthbert - Evolution of EO/GIS Interoperability towards an Integrated Application Infrastructure / Günther Landgraf Identification - Feature Identities, Descriptors and Handles / Philip Sargent - A Global Unique Persistent Object ID for Geospatial Information Sharing / Yaser A. Bishr Infrastructure - Implementation Architecture for a National Data Center / Steve Ramroop, Richard Pascoe - Architecture Considerations for Advanced Earth Observation Application Systems / Hermann Ludwig WIler, Marcello Mariucci, Bernhard Mitschang - A Spatial Data Infrastructure for the Hindu Kush - Himalayan Region / Peter Bitter - Interoper ability for GIScience Education / Karen K. Kemp, Derek E. Reeve, D. Ian Heywood Implementation - Adding an Interoperable Server Interface to a Spatial Database : Implementation Experiences with OpenMap™ / Charles B. Cranston, Frantisek Brabec, Gish R. Hjaltason, Douglas Nebert, Hanan Samet - Interop er ability in Practice: Problems in Semantic Conversion from Current Technology to OpenGIS / Gilberto Cdmara, Rogério Thomé Ubirajara Freitas, Antonio Miguel Vieira Monteiro - Building a Prototype OpenGIS® Demonstration from Interoperable GIS Components / Allan Doyle, Donald Dietrick, Jiirgen Ebbinghaus, Peter Ladstätter Vectors and Graphics - Modeling and Sharing Graphic Presentations of Geospatial Data / Stefan F. Keller, Hugo Thalmann - Towards OpenGIS Systems / Frits C. Cattenstart, Henk J. Scholten Semantics - Semantic and Geometric Aspects of Integrating Road Networks / Harry Uitermark. Anton Vogels. Peter can Oosterom - Assessing Semantic Similarities among Geospatial Feature Class Definition / M. Andrea Rodriguez, Max J. Egenhofer. Robert D. Rugg - Proceeding on the Road of Semantic Interoperability - Design of a Semantic Mapper Based on a Case Study from Transportation / Yaser A. Bishr, Hardy Pundt, Christoph Riither - What Are Sports Grounds? Or : Why Semantics Requires Interoperability / Catharina Riedemann, Wemer Kuhn Heterogeneous Databases - Identifying Semantically Similar Elements in Heterogeneous Spatial Databases Using Predicate Logic Expressions / Kristin Stock, David Pullar - Designing a Mediator for Managing Relationships between Distributed Objects / Hanna Kemppainen - Geospatial Mediator Functions and Container-B ased Fast Transfer Interface in SI'CO Test-Bed / Shigeru Shimada, Hiromichi Fukui - Plug and Play : Interoper ability in CONCERT / Lukas Relly, Uwe Röhm Representation - Functional Extensions of a Raster Representation for Topological Relation / Stephan Winter, Andrew U. Frank - 3D Synthetic Environment Representation Using the "Non-Manifold 3D Winged-Edge" Data Structure / Roy Ladner, Kevin Shaw, Mahdi Abdelguerfi - Pluggable Terrain Module - Moving Digital Terrain Modelling to a Distributed Geoprocessing Environment / Daria Martinoni, Bernhard Schneider Numéro de notice : 13171 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Actes Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=34623

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13171-01	CG.99	Livre	Centre de documentation	Congrès	Disponible

IGIS '94: Geographic Information Systems / Jürg Nievergelt (1994)  

Public Titre : IGIS '94: Geographic Information Systems : International Worshop on Advanced Research in Geographic Information Systems, Monte Verità, Ascona, Switzerland, 28 February/4 March 1994 : Proceedings Type de document : Actes de congrès Auteurs : Jürg Nievergelt, Éditeur scientifique ; Thomas Roos, Éditeur scientifique ; Hans-Jörg Schek, Éditeur scientifique ; Peter Widmayer, Éditeur scientifique Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 1994 Collection : Lecture notes in Computer Science, ISSN 0302-9743 num. 884 Conférence : IGIS 1994, international workshop on advanced research in Geographic Information Systems 28/02/1994 04/03/1994 Monte verita, Ascona Suisse Importance : 291 p. Format : 15 x 23 cm ISBN/ISSN/EAN : 978-3-540-58795-8 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] base de données localisées [Termes IGN] modèle conceptuel de données localisées [Termes IGN] modèle orienté objet [Termes IGN] optimisation (mathématiques) [Termes IGN] reconnaissance de formes [Termes IGN] système d'information géographique Résumé : (éditeur) This volume constitutes the proceedings of the International Workshop on Advanced Research in Geographic Information Systems, IGIS '94, held in Ascona, Switzerland in February/March 1994. The 28 carefully refereed and revised papers address all current aspects of GIS research and their advanced applications to spatial and environmental data engineering. Among the topics covered are GIS theory, spatial databases, spatial data structures, environmental modelling and control, data modelling, object-orientation, pattern recognition, and optimization. In addition, software and non-commercial as well as commercial GIS are analysed. Numéro de notice : 17084 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Actes En ligne : http://link.springer.com/book/10.1007%2F3-540-58795-0 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79439

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17084-01	CG1994	Livre	Centre de documentation	Congrès	Disponible

Advances in spatial databases, 2nd symposium, SSD '91, Zurich, Switzerland, August 1991, Proceedings / Oliver Günther (1991)  

Public Titre : Advances in spatial databases, 2nd symposium, SSD '91, Zurich, Switzerland, August 1991, Proceedings Type de document : Actes de congrès Auteurs : Oliver Günther, Éditeur scientifique ; Hans-Jörg Schek, Éditeur scientifique Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 1991 Collection : Lecture notes in Computer Science, ISSN 0302-9743 num. 0525 Conférence : SSD 1991, 2nd International Symposium on large spatial databases 28/02/1994 04/03/1994 Zurich Suisse Proceedings Springer Importance : 470 p. Format : 15 x 23 cm Note générale : accessible ISTEX Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] géomètrie algorithmique [Termes IGN] index spatial [Termes IGN] langage de requête [Termes IGN] métadonnées [Termes IGN] système d'information géographique [Termes IGN] topologie Résumé : (éditeur) Spatial database management has become an important subarea of current database research. Research in this area is often characterized by interdisciplinary cooperation: computer scientists work with geographers andenvironmental scientists to provide better access to spatial databases of steadily increasing size. After the First Symposium on Large Spatial Databases (SSD '89) was held in Santa Barbara, California, in 1989 (and its proceedings published as Volume 409 of this series), a second symposium (SSD'91) was held in Zurich, Switzerland. This proceedings volume contains the papers presented at SSD '91. Topics include spatial data models and access methods, performance studies, geometric algorithms, spatial query languages and user interfaces, geographic information systems, and object-oriented techniques. Numéro de notice : 10999 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Actes DOI : 10.1007/3-540-54414-3 En ligne : https://doi.org/10.1007/3-540-54414-3 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=88716

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10999-01	CG1991	Livre	Centre de documentation	Congrès	Disponible

Proceedings of the 16th international conference on very large data bases / Dennis McLeod (1991)

Public Titre : Proceedings of the 16th international conference on very large data bases Type de document : Actes de congrès Auteurs : Dennis McLeod, Auteur ; Ron Sacks-Davis, Auteur ; Hans-Jörg Schek, Auteur Editeur : San Mateo [Californie - Etats-Unis] : Morgan Kaufmann Publishers Année de publication : 1991 Conférence : VLDB 1990, 16th international conference on very large data bases 13/08/1990 16/08/1990 Brisbane Australie Proceedings Springer Format : 22 x 28 cm Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Produits informatiques [Termes IGN] base de données [Termes IGN] base de données déductive [Termes IGN] base de données localisées [Termes IGN] base de données temporelles [Termes IGN] indexation [Termes IGN] mise à jour de base de données [Termes IGN] modèle orienté objet [Termes IGN] requête (informatique) Index. décimale : CG1990 Actes de congrès en 1990 Note de contenu : Session 1 - Temporal databases Session 2 - Indexing techniques Session 3 - Transaction processing 1 Session 4 - Performance of OODB systems Session 5 - I/O architecture Session 6 - Hash-based join algortihms Session 7 - Recovery and data replication Session 8 - Deductive databases 1 Session 9 - Query optimisation Session 10 - Deductive databases 2 Session 11 - Deductive databases 3 Session 12 - Transaction processing 2 Session 13 - Conceptual issues in OODBs Session 14 - Database machines Session 15 - Multidatabases and OODBs Session 16 - Updates and constraints Session 17 - Spatial databases Session 18 - Nested relations and knowledge based systems Session 19 - System implementation issues Session 20 - Database languages and algorithms Numéro de notice : 59574 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Actes Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=36099

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
59574-01	CG.90	Livre	Centre de documentation	Congrès	Disponible

Ausgleichung großer geodätischer Netze mit Verfahren für schwach besetzte Matrizen / Hans-Jörg Schek (1977)

Public Titre : Ausgleichung großer geodätischer Netze mit Verfahren für schwach besetzte Matrizen Titre original : [Compensation de grands réseaux géodésiques avec des méthodes pour les matrices creuses] Type de document : Monographie Auteurs : Hans-Jörg Schek, Auteur ; F. Steidler, Auteur ; U. Schauer, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1977 Collection : DGK - A Sous-collection : Theoretische Geodäsie num. 087 Importance : 42 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-8171-0 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Triangulation [Termes IGN] compensation [Termes IGN] matrice creuse [Termes IGN] matrice de covariance [Termes IGN] réseau géodésique Index. décimale : 30.30 Triangulation - géodésie terrestre Résumé : (Auteur) The adjustment of large geodetic networks with distances and direction observations leads to large matrices of the normal equations, which generally are sparse, this means the share of- the nonzero elements is small. For the first time it is shown here that the factorization algorithms for general sparse matrices being scarcely considered in Geodesy, are suited very well for the solution of the occuring system of normal equations. Because of the non-linearity of this classical geodetic standard problem the application of the "four - step - factorization" will be discussed, consisting of the "optimal ordering", the symbolic factorization, the numeric factorization and the solution by "forward-backward substi-tution" . Furthermore, for the first time these modern methods are compared with classical iter-ative methods (method of conjugate gradients and successive overrelaxation). It has to be men-tioned here that with these iterative methods manipulations for acceleration of convergence, like scaling and nonlinearly regulated terminating criterion have been applied. With the aid of six geodetic networks of different size (50 - 2000 unknowns), which occur in geodetic reality these methods were tested in practice and the results compared. Two important observations are stressed especially: 1. Algorithms for the optimal ordering of the matrix of the normal equations (in other words for the optimal numbering of the nodes of the networks) are crucial. Quantitatively this can be proved by the reduction of calculation time from two hours to eleven seconds for the numeric factorization in the case of a network containing 2000 unknowns. Even with a matrix of the normal equations with a minimized bandwidth it could be proved in one case, that a simple ordering reduced also the time of factorization. 2. Iterative methods compare distinctly poor with direct methods. The SOR-method is only useful at homogeneous networks, where all points of the net which are connected by observations have the same distance (e.g. at triangulation networks). Although'the total number of the iter-ations of the method of conjugate gradients is surprisingly small, a distinctly superiority of the direct methods referring to the total calculation time of the solution of the adjust-ment problems is shown. This should be confirmed by the determination of selected elements of the covariance matrix for the error ellipses etc. Numéro de notice : 28228 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=63574

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28228-01	30.30	Livre	Centre de documentation	En réserve M-103	Disponible